Yin often refers to dark force in the yin and yang from traditional Chinese philosophy and medicine.

Yin or YIN may also refer to:

Surnames Yīn (surname) (), a Chinese surname Yīn (surname 陰), a Chinese surname  Yǐn (surname) (), a Chinese surname Yìn (surname) (), a Chinese surname

Kingdoms Shang dynasty, also known as the Yin dynasty Yinxu or Yin, the Shang dynasty capital now in ruins Yin (Five Dynasties period), a short-lived kingdom during China's Five Dynasties and Ten Kingdoms period

Other uses Yin Mountains, a mountain range in Inner Mongolia and Hebei province in China Yin (, yǐn), an office of early China sometimes equivalent to prime minister and sometimes to governor Prime minister (Chu State), known in Chinese as Lingyin. YIN, the IATA code for Yining Airport, Xinjiang, China Yin (Darker than Black), fictional character in the anime series Darker than Black

See also